文献类型：期刊文献

中文题名：热风干燥对皂角刺干燥特性及其生物活性组分的影响

英文题名：Effect of Hot Air Drying on the Drying Characteristics and Bioactive Components of Gleditsia sinensis Lam.Thorns

作者：刘勇[1] 张彩虹[1] 邓叶俊[1] 王翔[1] 谢普军[1] 黄立新[1]

第一作者：刘勇

机构：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏省林业资源高效加工利用协同创新中心,江苏南京210042

年份：2026

卷号：60

期号：1

起止页码：1-9

中文期刊名：生物质化学工程

外文期刊名：Biomass Chemical Engineering

基金：中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2022XB002-2)。

语种：中文

中文关键词：皂角刺;干燥特性;干燥动力学;生物组成;α-葡萄糖苷酶抑制

外文关键词：Gleditsia sinensis Lam.thorns;drying characteristics;drying kinetics;biological components;α-glucosidase inhibition

分类号：TQ35;R284

摘要：以皂角刺为原料,采用热风干燥对其进行处理,选择皂角刺的含水率、水分比、干燥速率、有效水分扩散系数(D_(eff))及干燥活化能(Ea)为评价指标,探究热风干燥温度(30~70℃)对皂角刺干燥特性、干燥动力学、生物组成及活性影响。实验结果显示:干燥温度对皂角刺中总皂苷、总多酚、总黄酮的含量及α-葡萄糖苷酶抑制活性均有影响。随温度升高,皂角刺干燥时间缩短、水分比降低、干燥速率加快,D_(eff)为2.34×10^(-10)~4.00×10^(-10)m^(2)/s,Ea为11.93 kJ/mol。随温度升高,皂角刺中总皂苷、总多酚、总黄酮与α-葡萄糖苷酶抑制活性均呈先增加后下降趋势,在60℃下皂角刺干燥速率较快,总皂苷(35.06±4.61 mg/g)、总多酚(92.44±1.12 mg/g)、总黄酮(48.38±2.21 mg/g)、α-葡萄糖苷酶抑制活性(59.36%±5.0%)达到最高。用HPLC测定皂角刺提取物中表儿茶素、花旗松素、芦丁、槲皮苷、漆黄素、芹菜素等多酚化合物的变化,结果显示:60℃下皂角刺中这6种常见多酚化合物的含量也显著高于其他温度下的含量。对皂角刺干燥过程的动力学模型拟合结果显示:7种干燥模型中,Modified Henderson and Pabis模型的R^(2)为0.996,拟合效果最佳。
Using Gleditsia sinensis Lam.thorns(GST)as raw material,hot air drying was applied for treatment.The moisture content,moisture ratio,drying rate,effective moisture diffusion coefficient(D eff),and activation energy of drying(E a)of GST were selected as evaluation indicators to explore the effects of hot air drying temperature(30-70℃)on its drying characteristics,drying kinetics,biological composition and bioactivity.The results showed that the drying temperature had an impact on the content of total saponin,total phenol,total flavonoid and α-glucosidase inhibitory activity of GST.As the temperature increased,the drying time of the GST was shortened,the moisture ratio decreased,and the drying rate increased.The D eff was 2.34×10^(-10)-4.00×10^(-10) m^(2)/s,and the E a was 11.93 kJ/mol.With the increase of temperature,the inhibitory activity of total saponin,total phenol,total flavonoid andα-glucosidase in GST first increased and then decreased.At 60℃,the drying rate of GST was faster,total saponin(35.06±4.61 mg/g),total phenol(92.44±1.12 mg/g),total flavonoid(48.38±2.21 mg/g),and α-glucosidase inhibitory activity(59.36%±5.0%)reached the highest.The changes of epicatechin,taxifolin,rutin,quercetin,fisetin,and apigenin in the extract of GST were determined by high performance liquid chromatography(HPLC).The results showed that the contents of these six common polyphenols in GST at 60℃were significantly higher than those at other temperatures.The fitting results of kinetic model for the GST drying process showed that among the seven drying models,the Modified Henderson and Pabis model had the best fitting effect with R^(2) of 0.996.